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Updated: Jul 17, 2026

An In Vivo Estrogen Deficiency Mouse Model for Screening Exogenous Estrogen Treatments of Cardiovascular Dysfunction After Menopause
Published on: August 13, 2019
Preventive effects of glycyrrhizin on estrogen-related endometrial carcinogenesis in mice
Kenji Niwa1, Zenglin Lian, Kyoko Onogi
1Department of Obstetrics and Gynecology, Gifu University School of Medicine, Gifu 501-1194, Japan. kniwa@gifu-u.ac.jp
Abstract:
We have previously reported on the inhibitory effect of Glycyrrhizae radix (Gl radix) on mouse endometrial carcinogenesis. The present study was performed to clarify the effects of Gl radix and glycyrrhizin (GL), the main part of Gl radix, on estradiol (E2)-related endometrial carcinogenesis. Both Gl radix and GL exerted a significant decrease in the COX-2, IL-1alpha and TNF-alpha mRNA expressions. GL generated a significant decrease in the incidence of endometrial adenocarcinoma. Accordingly, the preventive effects of Gl radix may be attributable to GL, thus being related with the suppression of COX-2, IL-1alpha and TNF-alpha. Gl radix and GL could therefore be a promising formula for the chemoprevention of human endometrial cancer.
Insights
Glycyrrhizae radix (Gl radix) and its main component glycyrrhizin (GL) show promise in preventing endometrial cancer. These compounds significantly reduced cancer incidence and key inflammatory markers in a mouse model.
Area of Science:
- Oncology
- Pharmacology
- Natural Products
Background:
- Endometrial cancer is a significant health concern.
- Estradiol (E2) plays a role in endometrial carcinogenesis.
- Glycyrrhizae radix (Gl radix) has shown prior inhibitory effects on endometrial carcinogenesis.
Purpose of the Study:
- To clarify the effects of Gl radix and glycyrrhizin (GL) on E2-related endometrial carcinogenesis.
- To investigate the molecular mechanisms underlying the preventive effects of Gl radix and GL.
Main Methods:
- Mouse models of endometrial carcinogenesis were utilized.
- The effects of Gl radix and GL on COX-2, IL-1alpha, and TNF-alpha mRNA expression were assessed.
- The incidence of endometrial adenocarcinoma was evaluated.
Main Results:
- Both Gl radix and GL significantly decreased COX-2, IL-1alpha, and TNF-alpha mRNA expression.
- GL treatment resulted in a significant decrease in endometrial adenocarcinoma incidence.
- The findings suggest GL is responsible for the preventive effects of Gl radix.
Conclusions:
- Glycyrrhizae radix and glycyrrhizin demonstrate chemopreventive potential against endometrial cancer.
- The mechanism involves the suppression of COX-2, IL-1alpha, and TNF-alpha.
- Gl radix and GL are promising candidates for human endometrial cancer chemoprevention.

